Braiding machine



Patented pr. 20, 192th.

U N l it all ANKER PETERSEN, OF VINIHROP, .MASSACHUSETTS BRADNG MACHNE.

Application led Sept( mbe-r 17'0 all 'Lo/0m it may concern.'

Be it known that l, Annan Pn'rnnsnn, a itizen of the United States ofAmerica,

` and resident of `Winthrop, in the county of Suffolk and State ofMassachusetts, have invented new and useful improvements in Braidingl/lachines, of which the following is a specification.

This invention pertains to braiding inachines of that type in which twoseries of bobbin carriers are caused to revolve in opposite directionsto intertwine their yarns at a centrally disposed braiding point, andrelates more particularly to means for driving the bobbin carriers ofthe inner series.

In my Patent No. 1,413,931 dated April 25, 1922, I have disclosed anarrangement for driving` the carriers of the inne series comprising apropelling or pusher roll which is rotated by the frictional engagementof an associated felt roll or washer with a resiliently supportedleather ring.

The object of the present invention is to provide improved means forrotating the pusher roll with greater uniformity of action and withsubstantial freedom from slippage even at extremely high speeds butwithout sacrificing the simplicity and lightness of weight attainable bythe patented structure.

ln the accompanying drawings vone preferred embodiment of the inventionis illustrated by way of example;

Fig. l being a fragmentary vertical section through a braiding machineof well known type having the present improvements embodied therein;

Fig. 2 is a plan view of a table or stationary support forming onefeature of the invention, and

Fig. 3 is a side elevation to larger scale showing a carrier drivingroll together with its actuating pinion and shaft.

Referring to the drawings the frame of the machine is indicated at 1.This frame supports a stationary vertical hollow shaft 2 upon which thesleeve 3 is mounted to turn. The shaft 2 is secured in any suitablemanner as by means of a set screw 2"l engaging a threaded opening in theframe and bearing against the shaft.

rl`he lower end of the sleeve 3 is preferably mounted on anti-frictionbearings and is furnished with a disk-like plate 4. which is keyed tothe sleeve at 5. ein annular beveled gear 6 is secured to the bevelededge Serial No. 665,705.

of the plate 4 and meshes with a pinion 7 fixed to a main drive shaft 8.The shaft 8 is provided with fast and loose pulleys 9 and 10respectively and may be driven by a belt from an*7 suitable source ofpower.

A second sleeve 11 surrounds the sleeve 3 about the plate 4, beingsupported to turn relatively to the sleeve 3 by suitable antifrictionbearings. The sleeve 11 supports a spider 12 which in turn carries anannular beveled gear 13 which also meshes with the pinion 7. Thearrangement of the gears 7 and 13 and the pinion 7 is such that thegears turn in opposite directions. The spider 12 is extended outwardlyand upwardly to form the outer revolving frame 1li upon which the bobbincarriers (not shown) of the outer series are mounted in the usualmanner.

An inner, carrier driving frame 15 is keyed to the upper end of thesleeve 3 at the point 15a. Upon the outer edge of this inner frame aseries of brackets 16 is mounted, only one of these brackets beingillustrated, it being understood that the other brackets are ofsubstantially the saine construction. Each bracket 16 comprises spacedbearings 17 and 18 in which a shaft 19 is mounted. The shaft 19 issubstantially radial with respect to the axis of the sleeve 3 andpreferably inclines downwardly and outwardly substantially asillustrated.

Above the disk 15 an open spider-like frame or table 2O is mounted. Thistable has a hub 21 which is keyed to the upper end of the stationaryshaft 2 at the point 22 and is furnished with an annular guide track 23upon its upper side and with an annular gear 2li upon its lower sideadjacent to its peripheral edge. The outer or peripheral portion of thetable 20 is as shown arranged in outwardly diverging relation to theshafts 19 so that at their outer ends these shafts are spaced furtherfrom the under side of the table than at their inner ends.

rlhe outer revolving frame 1d is furnished in the usual manner with aninternal groove 14a having a substantially iiat lower surface 1lib uponwhich the outer supporting wheels 25 of the bobbin carriers 26 aresupported. These bobbin carriers 26 of the inner series are alsofurnished with supporting wheels or rolls 27 at their inner ends, thelatter wheels or rolls resting upon and travelling along the track 23carried by the table 20,

A pusher-roll 2S is secured to the outer end of the shaft 19v off eachof the brackets 16. T he shafts 19 project outwardly beyond the edge ofthe table 20 which overlies the brackets 16 and the rolls 28 are of adiameter such that they project upwardly beyond the edge ot the table.These rolls are preferably formed of telt or some similar material andengage rolls 29 carried by the respective bobbin carriers 26.

A pinion 30 is associated with the pusherroll 28 ot' bracket 16, beingconnected to the roll in any desired manner to rotate therewith. Pinions8O are ot smaller diameter than the rolls 28 and mesh with the gear 24on the under side ot the table 20.

lVhen the main drive shaft 8 is rotated the sleeves 3 and 1l turn inopposite, directions, thus causing the outer traine l-l to turnoppositely to the inner frame 15 upon which the brackets 16 are mounted.The carriers 26 of the inner series vare iree to travel along theconcentric tracks lll and 23 and as the Vcompels the pusher rol-ls 28 torotate at a speed exactly in accordance with the speed at which theinner frame is driven. Slippage between the surfaces of the pusher roll2S and the roll 29 is thus reduced to a minimum with consequent gain inefficiency and substantial elimination of yarn breakage.

The desired result is thus attained without substantially complicatingthe mechanism and without unduly increasing' the weight of the partswhich is highly important in machines of this character which arecommonly run at speeds of the order of 3000 R. P. M.

l claim:

A braiding machine comprising an outer frame provided with an annularcarrier supporting track, an inner frame, means for turningsaid tramesin opposite directions about a common axis, a lixed disc-like tableoverlying the inner frame and having an annular carrier supporting trackconcentric with the track of the other trame, a carrier havinovanti-friction means envaaine' the re- Z': D o

spective tracks, a rotary shaft below the table, said shaft beingsupported by the inner rotating' frame and extending radially outwardand downward with its axis intersecting the plane of the tablesubstantially at the center oit the latter, a pusher-roll mounted upcnthe shaft adjacent to the outer end of the lat-ter and engageable withan elen'ient ot' the carrier to propel it along its supporting tracks, apinion co-axial with the pusherroll and disposed closely adjacent to theinner side of the latter and connected to the pusher-roll, the pinionbeing less in diameter than the roll and underlying the peripheral edgeportion ol the table, and an annular gear secured to the under side ofthe table and meshing with the 4pinion whereby te rotate the latter andthe pusher-roll about the axis of the pusher-roll shaft when the innerframe turns relatively tothe table.

Signed by me at Boston, Massachusetts, this 26th day of September, 1923.

ANKER rnfrnnsnn.

